Display messages
Possible causes/consequences and
M
M
Solutions
Lane
Lane Keeping
Keeping Assist
Assist
currently unavaila‐
currently unavaila‐
ble
ble See
See Owner's
Owner's Man‐
Man‐
ual
ual
or
Active Lane
Active Lane
Keeping Assist cur‐
Keeping Assist cur‐
rently unavailable
rently unavailable
See Owner's Manual
See Owner's Manual
Lane Keeping Assist or Active Lane Keeping Assist is deactivated and
temporarily inoperative.
Possible causes:
R
the windscreen is dirty in the camera's field of vision
R
visibility is impaired due to heavy rain, snow or fog
R
there have been no lane markings for an extended period
R
the lane markings are worn, dark or covered, e.g. by dirt or snow
Once the causes listed above no longer apply, the display message
goes out.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Safeguard the vehicle against rolling away (
Y
page 157).
X
Clean the windscreen.
Lane
Lane Keeping
Keeping Assist
Assist
inoperative
inoperative
or
Active
Active
Lane
Lane Keeping
Keeping Assist
Assist
inoperative
inoperative
Lane Keeping Assist or Active Lane Keeping Assist is faulty.
X
Consult a qualified specialist workshop.
Blind Spot Assist
Blind Spot Assist
currently unavaila‐
currently unavaila‐
ble
ble See
See Owner's
Owner's Man‐
Man‐
ual
ual
or
Active Blind
Active Blind
Spot Assist cur‐
Spot Assist cur‐
rently unavailable
rently unavailable
See Owner's Manual
See Owner's Manual
Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative.
Possible causes:
R
the radar sensor system is outside the operating temperature range
R
the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
The yellow
9
indicator lamps also light up in the exterior mirrors.
Once the causes listed above no longer apply, the display message
goes out.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Safeguard the vehicle against rolling away (
Y
page 157).
X
Restart the engine.
Blind Spot Assist
Blind Spot Assist
not available when
not available when
towing a trailer
towing a trailer
See Owner's Manual
See Owner's Manual
Blind Spot Assist or Active Blind Spot Assist is deactivated while tow-
ing a trailer.
You have established the electrical connection between the trailer and
your vehicle.
X
Press
a
on the steering wheel to confirm the display message.
242
Display messages
On
-b
oar
d
comp
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an
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lay
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